/Engine/Source/Editor/SceneOutliner/Public/SSceneOutliner.h
Copy specified folders to clipboard, keeping current clipboard contents if they differ from previous clipboard contents (meaning items were copied)
void CopyFoldersToClipboard ( const [TArray](API\Runtime\Core\Containers\TArray)< [FName](API\Runtime\Core\UObject\FName) > & InFolders, const [FString](API\Runtime\Core\Containers\FString) & InPrevClipboardContents )